Fix failing e2e testing due to additional of toolbar

e2e tests were failing due to introduction of valign toolbar meaning that number of tab stops needed to be increased by 3 (the number of items in the new toolbar).

Also uncovered a bug with Pupeteer not handling Cmd + A to “Select All” on a Mac. This is a known issue (puppeteer/puppeteer#1313
) and it is now worked around using arrows and backspace.

packages/e2e-tests/specs/block-hierarchy-navigation.test.js

@@ -44,7 +44,7 @@ describe( 'Navigating the block hierarchy', () => {
 		await lastColumnsBlockMenuItem.click();
 
 		// Insert text in the last column block.
-		await pressKeyTimes( 'Tab', 2 ); // Navigate to the appender.
+		await pressKeyTimes( 'Tab', 5 ); // Navigate to the appender.
 		await page.keyboard.type( 'Third column' );
 
 		expect( await getEditedPostContent() ).toMatchSnapshot();
@@ -76,17 +76,19 @@ describe( 'Navigating the block hierarchy', () => {
 		await page.keyboard.press( 'Enter' );
 
 		// Insert text in the last column block
-		await pressKeyTimes( 'Tab', 2 ); // Navigate to the appender.
+		await pressKeyTimes( 'Tab', 5 ); // Navigate to the appender.
 		await page.keyboard.type( 'Third column' );
 
 		expect( await getEditedPostContent() ).toMatchSnapshot();
 	} );
 
 	it( 'should appear and function even without nested blocks', async () => {
+		const textString = 'You say goodbye';
+
 		await insertBlock( 'Paragraph' );
 
 		// Add content so there is a block in the hierachy.
-		await page.keyboard.type( 'You say goodbye' );
+		await page.keyboard.type( textString );
 
 		// Create an image block too.
 		await page.keyboard.press( 'Enter' );
@@ -96,8 +98,11 @@ describe( 'Navigating the block hierarchy', () => {
 		await openBlockNavigator();
 		await page.keyboard.press( 'Space' );
 
-		// Replace its content.
-		await pressKeyWithModifier( 'primary', 'A' );
+		// Replace its content
+		// note Cmd/Ctrl + A doesn't work on Mac with Pupetter right now
+		// https://github.com/GoogleChrome/puppeteer/issues/1313
+		await pressKeyTimes( 'ArrowRight', textString.length );
+		await pressKeyTimes( 'Backspace', textString.length );
 		await page.keyboard.type( 'and I say hello' );
 
 		expect( await getEditedPostContent() ).toMatchSnapshot();